UNIX for Dummies Questions & Answers

20081213aaaaaaaaa
20081213bbbbbbbbb
20081220ccccccccc
20081220ddddddddd
20081220eeeeeeeee
20081227ffffffffffffff

20081213aaaaaaaaa
20081213bbbbbbbbb

20081220ccccccccc
20081220ddddddddd
20081220eeeeeeeee

20081227ffffffffffffff

while read line
do
file=`echo Output_file_``echo $line | cut -b 1-8`
string=`echo $line | cut -b 9-`
echo $string >> $file
done < input

for line in `cat files`
do
        file=`echo output_file``echo $line | cut -b 0-8`
        data=`echo $line | cut -b 9-`
        echo $data | cat >> $file
done

awk '{print > "Output_file_" substr($0,1,8)}' file

while read line
do
        content=`sed -rn "s/^[0-9]{8}(.+)$/\1/p" <<<$line`
        date=`sed -rn "s/^([0-9]{8}).+/\1/p" <<<$line`
        temp=$?
        filename="Output_file_"$date
        if [ $temp -eq 0 ];then
                echo "$content">>$filename
        fi
done <"input_file.txt"
echo "Files created "

sed -n -e "1,3p" file > file1

sed -n -e "4,6p" file > file2